Dorman 425-378 Steering Shaft - Lower

Overview of Dorman Steering Shaft 425-378

The Dorman 425-378 steering shaft is engineered for reliable performance in select Ford and Lincoln vehicles. Designed with durable steel construction and universal joints included, this steering shaft ensures smooth and precise steering response for your Ford Flex, Lincoln MKS, MKT, and Taurus models.

• Constructed from high-strength steel for durability
• Diameter measures 1.17 inches for proper fitment
• Length of 23 inches to match OEM specifications
• Includes 2 universal joints for enhanced flexibility
• Black finish with internal profile on one end
• Compatible with Ford Flex, Lincoln MKS, MKT, and Taurus
• Mounting hardware and installation instructions not included

Detailed Product Description

The Dorman 425-378 steering shaft is a direct replacement part designed to restore the steering system's integrity in compatible Ford and Lincoln vehicles. Made from steel, this shaft offers strength and resistance to wear, ensuring long-term reliability. The 1.17-inch diameter and 23-inch length are engineered to meet factory specifications, providing a precise fit. Featuring two universal joints, the shaft accommodates steering column movement and vibration, maintaining smooth steering operation. The black finish helps resist corrosion, while the internal profile on one end ensures secure connection within the steering assembly.

Compatible Vehicles and Applications

This steering shaft is compatible with the following vehicles:

• Ford Flex
• Lincoln MKS
• Lincoln MKT
• Ford Taurus

It is designed to replace worn or damaged steering shafts in these models, helping to restore proper steering function and safety.

Common Issues Addressed by This Steering Shaft

• Steering shaft wear causing looseness or play in the steering wheel
• Vibration or noise during steering due to faulty universal joints
• Difficulty in steering or binding in the steering column
• Corrosion or damage to the original steering shaft
• Failure of the internal profile connection leading to steering instability

Installation Notes and Tips

Installation of the Dorman 425-378 steering shaft requires mechanical knowledge and proper tools. Note that mounting hardware and installation instructions are not included, so refer to the vehicle’s service manual for detailed procedures. Ensure the universal joints are properly aligned and secured to avoid steering issues. It is recommended to inspect related steering components during installation for wear or damage.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 425-378 steering shaft undergoes quality checks to ensure durability and performance. Please consult Dorman’s official warranty policy for coverage details.